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Table 2.8: Specifications of JERS-1 SAR system (Nenoto el ø/, [85]) Para¡reter' Altenna size Flequency Polalization Bandrviclth Pulseiviclth Off-naclil angle Swath rvidth Noise equivalent backscattering coeff. Power' PRF (selectable) Resolution Quantization Bit No. Down Link Data Rate V¿lue Il I x 2.2 ¡'t 1275 MHz (L-band) HH 15 MHz 35 Ps 35.21' 75 km' -25.5 dB (rnaximum) al¡out 1.i kW (rninirnurn) 1505.8, 1530,1, 1555.2, 1581.1 alcl 1606.0 (norninal) Hz 18 x 18 m (3 looks) 3 bits cligitization 60 Mb /s 130 Mb /s x 2 channel covel a swath of 75 km width with l8 rn glound lesolution. Characteristics of OPS ale given in Tal¡le 2.9. The naclil location of inages lecolcled by JERS-1 sensors (both SAR and OPS) is clefinecl by the Grouncl Reference System (GRS) fol JERS-1. The GRS is a wolld wide coolclinate system u'ith ahnost same gricl spacing over' the Earth's surface defined by satellite orbit "PATH nurnber", r'anging florn 1 to 659, ancÌ "ROW nutnber", ranging fi'om 147 to 449 (Moon ef al. l79l). to
Table 2.9: Chalactelistics of OPS on JERS 1 (MITI/NASDA [77]) P alarneter VNIR Spectral Balcl SWIR Spectral Band View angle Steleo angle Grouncl resolution Swath Width Data rate Dipitization VaLue Bancl 1: 0.52 0.60 ¡-rm Bancl 2: 0.63 - 0.69 pm Bancl 3: 0.76 0.86 pm Band 4: 0.76 - 0.86 prn lfolwarcl viervins) Band 5: 1.60 - 1.71 ¡rm Band 6: 2.01 - 2.12 p.n Bancl 7: 2.13 2.25 ¡r:m Band B: 2.27 - 2.40 ¡.tn't 7.55" 15.3' 18.3 x 24.2 r¡ 75 kn¿ 60 Mb/s 6 bits 5) RADARSAT The Radalsat, the flrst Canadian lemote sensing satellite, is planned to be l¿unclred in 1994 (Raney et aL l93l). Tlie only payload instlument is a SAR operating at a fi'equency of 5.3 GHz (C-band). The spacecraft is schedulecl for' launch into a sun synchronous neal polar orbit in 1994 fol a five-yeal mission. The satellite's five-year clesign life is timed to complernent the ealliel ERS-i ancl JtrRS-1 pÌograùrÌnes (Ahemed et aL lll). The orbit palaneters of Radarsat are given in Table 2.10. The nominal altitucle of platform rvill be 800 Àrn ivith 98.6' inclination arìcl an ascencling nocle of 1800-houls local time. Raclalsat rvill provicle claily Arctic covelage, 30
Page 1 and 2: INVERSION OF SYNTHETIC APERTUR,E R,
Page 3 and 4: ñr^-- ltoN. J00NG suN '¿i¡r"r os
Page 5 and 6: I heleby declale that I am tlie sol
Page 7 and 8: plot of the maximum amplitude of th
Page 9 and 10: Contents Abstract Acknowledgements
Page 11 and 12: 6.3.1 Introduction ..151 6.3.2 Digi
Page 13 and 14: 5.1 Florv chart fot the proposecl i
Page 15 and 16: List of Tables 2,1 Seasat SAR senso
Page 17 and 18: List of Notations cr squint angle P
Page 19 and 20: tist of Abbreviatíons SAR Syntheti
Page 21 and 22: The objectives of this thesis rnay
Page 23 and 24: Ground Range l;l 2 sin0 Figure 1.2:
Page 25 and 26: ol'cler to evaluate its full aclvan
Page 27 and 28: algolithrn extlacts the complex bac
Page 29 and 30: successful as expected. Thele ale,
Page 31 and 32: eú ø1. [103]). Similal clevelopme
Page 33 and 34: aerial plìotogl'aphy ovel the area
Page 35 and 36: 2.2 Spaceborne SAR Systems 1) SEASA
Page 37 and 38: tlie basis of a distinctive dlainag
Page 39 and 40: set fol selectecl aleas, useful for
Page 41 and 42: 3) ERS-I The first European rernote
Page 43 and 44: Table 2.4: ERS-I Ðieterle [104]).
Page 45 and 46: Table 2.6: ERS-1 SAR pelfolmance re
Page 47: Table 2.7: JtrRS-1 olbit pararnetel
Page 51 and 52: Table 2.11: Specifications of Racla
Page 53 and 54: Chapten 3 Review of Digital SAR Pro
Page 55 and 56: ,I Figule 3.1: Raclar' L¡earn geom
Page 57 and 58: I L-=J}"no Figure 3.2: Geouretry fo
Page 59 and 60: vhich is the clistance across the a
Page 61 and 62: vlrere ø6 is a angular center fi'e
Page 63 and 64: à1 äl (a) /1T. or^l - r+ (b) I à
Page 65 and 66: a,pploxirnated by l2p sinl(I - ltl)
Page 67 and 68: -s(cu) is rewlitten as s@¡ - !"-,r
Page 69 and 70: cliscussecl later il this sectio¡r
Page 71 and 72: Ïon = _2 (V(ro) .V(¿o)+ R(ro) .A(
Page 73 and 74: : Range Walk : Range Curvatule : Ra
Page 75 and 76: olbital SAR is given by Ion = -'#{t
Page 77 and 78: is constant cluling the receiving p
Page 79 and 80: a at f¡r
Page 81 and 82: 'rvith a foulula developed il this
Page 83 and 84: Chapter 4 Theoretical Development 4
Page 85 and 86: developed and cliscussed by several
Page 87 and 88: vhere u (r,ro; u) : I U 1r,ro,t)e-i
Page 89 and 90: wheÌe k':frf a¡cl lc -_ uf us ant
Page 91 and 92: 4) there is relative motion of ante
Page 93 and 94: o =løo, 0, 0) Figure 4.1: Schemati
Page 95 and 96: elorv that sulface. In genetal, sul
Page 97 and 98: 4.4 The Inversion The equation Eq.(
Page 99 and 100:
*'here % is a platfolrn velocity an
Page 101 and 102:
The trq.(a.36) cannot be used dilec
Page 103 and 104:
vhele Àl is a tvavenurnbel collesp
Page 105 and 106:
2-D FFT o(,b,;ø) Intelpolation in
Page 107 and 108:
¡nE 0$r-sEc, ¡3 I IrlÊ [18- 5EC
Page 109 and 110:
5.2 Digital Simulation Digital sirn
Page 111 and 112:
Table 5.2: Moclel palametels fol di
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signal and the leconstructe
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(3 È. e tc o) o -tl a Slant Range
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that the inversiol method can accor
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(n t0 Ê) 0c (lr) Figure 5.6: Seasa
Page 121 and 122:
5.3 Processing of Real SAR Data A s
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squâre pixel rvith clir¡ension of
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Aziurutì (n Þ !d !D gc Figule 5.1
Page 127 and 128:
(n 5 F Þ tq Figu.e 5.11: Reconst.u
Page 129 and 130:
over tlìe 2.4 inches as shol¡l i'
Page 131 and 132:
Ø Þ :J m (a) (b) ^a ctl _= a"r ro
Page 133 and 134:
Chapter 6 SAR fmage Enhancement for
Page 135 and 136:
1) hoiv can the tlends of lineament
Page 137 and 138:
6.2 Determination of Geological Str
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Coolclinates for the image space an
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Figure 6.2: Point, lines, and hyper
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scatteter (e.g. coller leflectols,
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Figure 6.5: CCRS's airboure C-band
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C-l¡ancl SAR irnagery ovel this al
Page 149 and 150:
Figure 6.8: Radon transform of ailb
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in the irnage space ancl the Iine i
Page 153 and 154:
ERS- 1 N U 0 rl 0o |lO + ,¡l r.l p
Page 156 and 157:
6.2,3 Correlation Using The Radon T
Page 158 and 159:
Since the inside of the squale blac
Page 160 and 161:
Figule 6.12: Model test for correla
Page 162 and 163:
thlough the Radon tlansfolm is shor
Page 164 and 165:
Figure 6.15: Airborne C-band SAR da
Page 166 and 167:
distinct points can be cliscelnerl
Page 168 and 169:
Figure 6.18: Correlation output thr
Page 170 and 171:
6.3 Merging of Multiple SAR Image D
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in Figure 6.19 tvhich is a clilect
Page 174 and 175:
Figure 6.20: Additive irnages rvith
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Figule 6.22: Subtractive images rvi
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(1) select a clirection to be enhan
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Figure 6.24: Lnage obtained through
Page 182:
6.3.4 Principal Components Analysis
Page 185 and 186:
Table 6.2: Con'elation coeffrcielt
Page 187 and 188:
Figure 6.27: The PCA frrst componen
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the geological surface lilearrent f
Page 191 and 192:
ackscatte.i'g coefficiert can be cl
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Appendices A. Derivation of Forward
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B. Derivation of Inversion Formula
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C. Derivation using the Method of S
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F[eferences [1] Ahmed, S., \Vallen,
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[20] Curlis, J.D,, Flost, V.S., Del
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[43] Holn, R., 1988, E-SAR - The ex
Page 205 and 206:
[65] Lotrelrl, O., 1990, Dopplel ce
Page 207 and 208:
[87] Pye, 8.G., Nalch'ett,4.J., anc
Page 209:
[111] \,Vu, C., Balkan,8., I(arplus
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